Astro - Information Disclosure

id: CVE-2024-56159

info:
  name: Astro - Information Disclosure
  author: theamanrawat
  severity: medium
  description: |
    Astro versions v5.0.3 through v5.0.7 and Astro v4.16.17 or older with sourcemaps enabled contain a source code disclosure caused by sourcemap files being publicly accessible in the build output folder, letting unauthenticated users read server source code, exploit requires sourcemaps to be enabled.
  impact: |
    Unauthenticated users can access server source code, potentially leading to discovery of further vulnerabilities or sensitive information.
  remediation: |
    Update Astro to version 5.0.8 or later for server-output projects, and to 5.0.9 or later (or 4.16.18 for Astro v4) for static-output projects with sourcemaps enabled.
  reference:
    - https://github.com/withastro/astro/security/advisories/GHSA-49w6-73cw-chjr
    - https://nvd.nist.gov/vuln/detail/CVE-2024-56159
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2024-56159
    epss-score: 0.01536
    epss-percentile: 0.74625
    cwe-id: CWE-219
  metadata:
    verified: true
    max-request: 1
    shodan-query: http.html:"astro"
  tags: cve,cve2024,astro,sourcemap,exposure,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/pages/index.astro.mjs.map"
      - "{{BaseURL}}/index.astro.mjs.map"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"version":'
          - '"sources":'
          - '"sourcesContent":'
          - '.astro'
        condition: and

      - type: status
        status:
          - 200
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